# Q. 6.     Saima wants to put a lace on the edge of a circular table cover of diameter $1.5 \; m$. Find the length of the lace required and also find its cost if one meter of the lace costs$Rs.15.$ (Take $\pi =3.14$)

It is given that diameter of a circular table is 1.5m.

We know that

Circumference of circle is $= 2\pi r$

$\Rightarrow 2 \times \frac{22}{7}\times \frac{1.5}{2} = 4.71 \ m$

Now, length of the lace required is

$\Rightarrow$  circumference of circle $= 4.71 \ m$

Now,  cost of lace at $Rs.15 \; per \; meter$ is

$\Rightarrow 4.71 \times 15 = 70.65 \ Rs$

Therefore, length of the lace required is  4.71 m and   cost of lace at  $Rs.15 \; per \; meter$  is  Rs 70.65

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